Dears,
SRVCC is being tested with a Femtocell and after sending HO required message with SRVCC HO Indication IE as CS_only, a HO cancel message is sent by eNB due to timer TS1relocprep expires (despite having been tested with 3, 5 and 10 seconds) since none message is received by MME.
As I see next step would be analyze which messages are seen from MME to MSS/MSC by SV interface once HO REQUIRED messaged is received, however, any lead or comment are welcome in order to further analyze/test from Femto side.